U.S.ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY

540 S. MORRIS AVE., MONTGOMERY, AL 36115 RA228 ANALYSES REPORT OF SAMPLE DELIVERY GROUP #1400013 Project: Petcoke Dust Investigation, Southeast Chicago, IL Analysis method: Radium-228 in Environmental Matrices Report ID: 1400013-RA228 Report type: Original Date reported: 04/17/2014 Total pages in report: 25 SAMPLES

NAREL Sample #

Client Sample ID

Location

Matrix

Date Collected

Date Received

B4.02512P B4.02513Q B4.02514R B4.02515T B4.02516U B4.02517V B4.02518W B4.02519X B4.02520P B4.02521Q B4.02522R B4.02523T B4.02524U

S-1 S-2 S-3 S-4 S-5 S-6 N-1 N-2 N-3 N-4 N-5 N-6 N-2 DUP

IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO IL:CHICAGO

SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL

03/03/2014 03/03/2014 03/03/2014 03/03/2014 03/03/2014 03/03/2014 03/04/2014 03/04/2014 03/04/2014 03/04/2014 03/04/2014 03/04/2014 03/04/2014

03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014 03/06/2014

EXCEPTIONS 1. Packaging and shipping – Included in the shipment was an empty jar labeled “Blank Rad.” This jar was not

logged as a sample, and the client was informed. 2. Documentation – No problems were observed. 3. Sample preparation – No problems were encountered. 4. Analysis – No problems were encountered. 5. Holding times – No holding times were specified.

QUALITY CONTROL 1. QC samples – All QC analysis results met NAREL acceptance criteria. 2. Yields – All chemical yields were within acceptance limits. 3. Instruments – Response and background checks for all instruments used in these analyses met NAREL

acceptance criteria.

Report: 1400013-RA228 Original - 1 -

ACCREDITATION

All analyses included in this data package are accredited by the Oregon Environmental Laboratory Accreditation Program (ORELAP) to the TN! standard.

CERTIFICATION

I certifY that this data report complies with the terms and conditions of the Quality Assurance Project Plan, except as noted above. Release of the data contained in this report has been authorized by the Director ofthe Center for Environmental Radioanalytical Laboratory Science and the NAREL Quality Assurance Manager, or their designees, as verified by the following signatures.

Report: 1400013-RA228

Mary F. Wisd Quality Assura ce Manager, NAREL

c~::w Director, Center for Environmental Radioanalytical Laboratory Science

- 2 -

Date

Original

GENERAL INFORMATION

SAMPLE TYPES

BLD Blind sample FBK Field blank SAM Normal sample

ANALYSIS QC TYPES

ANA Normal analysis DUP Laboratory duplicate LCS Laboratory control sample, or blank spike MS Matrix spike MSD Matrix spike duplicate (not currently analyzed) RBK Method blank STD External standard (used for 228Ra yield determination)

QUALITY INDICATORS

RPD Relative Percent Difference %R Percent Recovery Z Number of standard deviations by which a QC measurement differs from the expected value

RADIOCHEMICAL DATA

Radiochemical analyses usually require the subtraction of an instrument background measurement result from a gross sample measurement result. Both values are positive, but when the sample activity is low, random variations in the two measurements can cause the gross value to be less than the background, resulting in a measured activity less than zero. Although negative activities have no physical significance, they do have statistical importance, as for example in the evaluation of trends or the comparison of two groups of samples.

To the extent practical, it is the policy of NAREL to report results as generated, whether positive, negative, or zero, together with the “2-sigma” measurement uncertainty and a sample-specific estimate of the minimum detectable concentration (MDC). The measurement result, uncertainty, and MDC are always expressed in the same unit of measurement.

EVALUATION OF QC ANALYSES

A method blank result is considered unacceptable if it is more than 3 standard deviations below zero or more than 3 standard deviations above a predetermined upper control limit. For some analyses NAREL has set the upper control limit at zero. For others the control limit is a small positive number.

NAREL evaluates the results of duplicate and spike analyses using “Z scores.” A Z score is the number of standard deviations by which the QC result differs from its ideal value. Generally the score is considered acceptable if its absolute value is not greater than 3.

The Z score for a spiked sample is computed by dividing the difference between the measured value and the target value by the combined standard uncertainty of the difference. The Z score for a duplicate analysis is computed by dividing the difference between the two measured values by the combined standard uncertainty of the difference.

NAREL reports the “relative percent difference,” or RPD, between duplicate results and the “percent recovery,” or %R, for spiked analyses, but does not use these values for evaluation of most analyses. An exception is the use of %R in the evaluation of gross alpha matrix spike results. A gross alpha matrix spike result is considered acceptable if either |Z| ≤ 3 or 60 ≤ %R ≤ 110.

Report: 1400013-RA228 Original - 3 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

ANALYSIS SUMMARY Analysis method: NAREL RA-05 Title: Radium-228 in Environmental Matrices

NAREL Sample # Client Sample ID QC Type

Date Completed

Preparation Batch #

Assay Batch #

B4.02512P B4.02512P B4.02513Q B4.02514R B4.02515T B4.02516U B4.02517V B4.02518W B4.02519X B4.02520P B4.02521Q B4.02522R B4.02522R B4.02523T B4.02524U LCS-00688239Q * RBK-00688238P * STD-00688240H * STD-00688241J *

S-1 S-1 S-2 S-3 S-4 S-5 S-6 N-1 N-2 N-3 N-4 N-5 N-5 N-6 N-2 DUP

DUP

MS

LCS RBK STD STD

04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/14/2014 04/15/2014 04/14/2014 04/15/2014

0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H 0010907H

0018017A 0018017A 0018017A 0018017A 0018017A 0018017A 0018017A 0018017A 0018018B 0018018B 0018018B 0018018B 0018018B 0018018B 0018018B 0018017A 0018018B 0018017A 0018018B

* Samples marked with an asterisk are not in this sample delivery group but were analyzed with it for QC purposes.

Report: 1400013-RA228 Original - 4 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02512P Client sample ID: S-1 Matrix: SOIL Collected: 2014-03-03 08:30 CST Sample type: SAM Dry/wet weight: 90.95 % Ash/dry weight: 0.55 %

Amount analyzed: 1.055e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA1A RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 3.37e-02 5.2e-01 9.1e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 5 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02512P Client sample ID: S-1 Matrix: SOIL Collected: 2014-03-03 08:30 CST Sample type: SAM Dry/wet weight: 90.95 % Ash/dry weight: 0.55 %

Amount analyzed: 1.055e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: DUP

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA1B RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 2.74e-01 5.2e-01 8.9e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 6 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02513Q Client sample ID: S-2 Matrix: SOIL Collected: 2014-03-03 09:50 CST Sample type: SAM Dry/wet weight: 95.20 % Ash/dry weight: 0.49 %

Amount analyzed: 1.054e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA1C RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 -1.54e-01 5.1e-01 9.3e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 7 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02514R Client sample ID: S-3 Matrix: SOIL Collected: 2014-03-03 10:40 CST Sample type: SAM Dry/wet weight: 92.65 % Ash/dry weight: 0.81 %

Amount analyzed: 1.031e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA1D RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 3.06e-01 5.2e-01 8.8e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 8 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02515T Client sample ID: S-4 Matrix: SOIL Collected: 2014-03-03 11:15 CST Sample type: SAM Dry/wet weight: 92.88 % Ash/dry weight: 2.71 %

Amount analyzed: 1.053e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA2A RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 1.64e-02 4.6e-01 8.2e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 9 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02516U Client sample ID: S-5 Matrix: SOIL Collected: 2014-03-03 13:10 CST Sample type: SAM Dry/wet weight: 91.89 % Ash/dry weight: 0.37 %

Amount analyzed: 1.030e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA2B RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 -3.21e-01 4.5e-01 8.6e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 10 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02517V Client sample ID: S-6 Matrix: SOIL Collected: 2014-03-03 13:35 CST Sample type: SAM Dry/wet weight: 90.96 % Ash/dry weight: 1.56 %

Amount analyzed: 1.038e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA2C RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 1.02e-01 4.7e-01 8.3e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 11 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02518W Client sample ID: N-1 Matrix: SOIL Collected: 2014-03-04 08:38 CST Sample type: SAM Dry/wet weight: 94.98 % Ash/dry weight: 0.84 %

Amount analyzed: 1.069e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:38 100.0 QA2D RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 5.19e-01 4.9e-01 7.8e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 12 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02519X Client sample ID: N-2 Matrix: SOIL Collected: 2014-03-04 09:10 CST Sample type: SAM Dry/wet weight: 94.84 % Ash/dry weight: 0.92 %

Amount analyzed: 1.055e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA1A JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 3.37e-02 5.2e-01 9.1e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 13 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02520P Client sample ID: N-3 Matrix: SOIL Collected: 2014-03-04 10:30 CST Sample type: SAM Dry/wet weight: 91.44 % Ash/dry weight: 0.61 %

Amount analyzed: 1.067e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA1B JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 -2.05e-01 4.8e-01 8.7e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 14 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02521Q Client sample ID: N-4 Matrix: SOIL Collected: 2014-03-04 09:50 CST Sample type: SAM Dry/wet weight: 87.42 % Ash/dry weight: 0.32 %

Amount analyzed: 1.047e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA1C JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 1.13e-01 5.4e-01 9.3e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 15 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02522R Client sample ID: N-5 Matrix: SOIL Collected: 2014-03-04 12:50 CST Sample type: SAM Dry/wet weight: 94.56 % Ash/dry weight: 1.39 %

Amount analyzed: 1.058e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA1D JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 3.44e-02 4.9e-01 8.6e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 16 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02522R Client sample ID: N-5 Matrix: SOIL Collected: 2014-03-04 12:50 CST Sample type: SAM Dry/wet weight: 94.56 % Ash/dry weight: 1.39 %

Amount analyzed: 1.058e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: MS

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA2A JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 1.54e+01 2.2e+00 8.2e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 17 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02523T Client sample ID: N-6 Matrix: SOIL Collected: 2014-03-04 13:20 CST Sample type: SAM Dry/wet weight: 91.09 % Ash/dry weight: 0.95 %

Amount analyzed: 1.060e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:34 100.0 QB1A JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 -4.12e-01 4.7e-01 9.0e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 18 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: B4.02524U Client sample ID: N-2 DUP Matrix: SOIL Collected: 2014-03-04 09:10 CST Sample type: SAM Dry/wet weight: 95.06 % Ash/dry weight: 0.85 %

Amount analyzed: 1.053e+00 GDRY Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: ANA

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA2B JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 1.27e-01 4.9e-01 8.4e-01 PCI/GDRY 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 19 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: LCS-00688239Q Client sample ID: N/A Matrix: N/A Collected: N/A Sample type: N/A Dry/wet weight: N/A Ash/dry weight: N/A

Amount analyzed: 1.000e+00 SAMP Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: LCS

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:40 100.0 QB1A RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 1.68e+01 1.7e+00 9.5e-01 PCI 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 20 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: RBK-00688238P Client sample ID: N/A Matrix: N/A Collected: N/A Sample type: N/A Dry/wet weight: N/A Ash/dry weight: N/A

Amount analyzed: 1.000e+00 SAMP Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: RBK

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA2C JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 3.36e-01 5.1e-01 8.5e-01 PCI 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 21 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: STD-00688240H Client sample ID: N/A Matrix: N/A Collected: N/A Sample type: N/A Dry/wet weight: N/A Ash/dry weight: N/A

Amount analyzed: 1.000e+00 ML Preparation batch #: 0010907H Assay batch #: 0018017A Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: STD

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/14/2014 10:40 100.0 QB1B RCL

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 6.79e+01 3.2e+00 % 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 22 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG #1400013

SAMPLE ANALYSIS REPORT Lab sample #: STD-00688241J Client sample ID: N/A Matrix: N/A Collected: N/A Sample type: N/A Dry/wet weight: N/A Ash/dry weight: N/A

Amount analyzed: 1.000e+00 ML Preparation batch #: 0010907H Assay batch #: 0018018B Prep procedure: NAREL RA-01 Analysis method: NAREL RA-05 Analyst: VH QC type: STD

Sample description: N/A Comment: N/A

COUNTING INFORMATION

Date and time

Duration (min)

Detector ID

Operator 04/15/2014 10:33 100.0 QA2D JEA

ANALYTICAL RESULTS

Analyte Activity ± 2 σ

Uncertainty MDC Unit Reference Date Ra228 6.80e+01 3.2e+00 % 04/03/2014 16:02 CDT

Report: 1400013-RA228 Original - 23 -

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY

SDG 1400013 PREPARATION BATCH SUMMARY

Preparation batch #: 0010907H Analysis method: NAREL RA-05 Preparation procedure: NAREL RA-01

NAREL Sample # Client Sample ID Analysis #

QC

Type

Yield

± 2 σ

Uncertainty Analyst

B4.02512P B4.02512P B4.02513Q B4.02514R B4.02515T B4.02516U B4.02517V B4.02518W B4.02519X B4.02520P B4.02521Q B4.02522R B4.02522R B4.02523T B4.02524U LCS-00688239Q * RBK-00688238P * STD-00688240H * STD-00688241J *

S-1 S-1 S-2 S-3 S-4 S-5 S-6 N-1 N-2 N-3 N-4 N-5 N-5 N-6 N-2 DUP

00686321Z 00688236M 00686327F 00686333D 00686339K 00686345H 00686351F 00686357M 00686363K 00686369R 00686375P 00686381M 00688237N 00686387U 00686393R 00688239Q 00688238P 00688240H 00688241J

DUP

MS

LCS RBK STD STD

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

VH VH VH VH VH VH VH VH VH VH VH VH VH VH VH VH VH VH VH

* Samples marked with an asterisk are not in this sample delivery group but were analyzed with it for QC purposes.

QC RESULTS FOR BATCH 0010907H

NAREL Sample # Analysis #

QC Type Analyte %R RPD Z Evaluation

B4.02512P LCS-00688239Q B4.02522R RBK-00688238P

00688236M 00688239Q 00688237N 00688238P

DUP LCS MS

RBK

RA228 RA228 RA228 RA228

127.9 123.7

156.2

0.65 2.83 2.06

PASS WARN WARN PASS

Report: 1400013-RA228 Original 24

U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL ANALYTICAL RADIATION ENVIRONMENTAL LABORATORY SDG 1400013 ASSAY BATCH SUMMARY EXTERNAL STANDARD

Assay Batch

Analysis #

Analyte

Standard Concentration

Reference Date

Yield

± 2 σ Uncertainty

0018017A 0018018B

00688240H 00688241J

RA228 RA228

9.45e+01 PCI/ML 9.45e+01 PCI/ML

07/19/2013 07/19/2013

67.91 % 67.96 %

3.23 % 3.18 %

SAMPLES ANALYZED

NAREL Sample #

QC Type

Aliquot Size

Completion Date

Assay Batch

B4.02512P B4.02512P B4.02513Q B4.02514R B4.02515T B4.02516U B4.02517V B4.02518W B4.02519X B4.02520P B4.02521Q B4.02522R B4.02522R B4.02523T B4.02524U LCS-00688239Q * RBK-00688238P * STD-00688240H * STD-00688241J *

DUP

MS

LCS RBK STD STD

1.06e+00 GDRY 1.06e+00 GDRY 1.05e+00 GDRY 1.03e+00 GDRY 1.05e+00 GDRY 1.03e+00 GDRY 1.04e+00 GDRY 1.07e+00 GDRY 1.06e+00 GDRY 1.07e+00 GDRY 1.05e+00 GDRY 1.06e+00 GDRY 1.06e+00 GDRY 1.06e+00 GDRY 1.05e+00 GDRY 1.00e+00 SAMP 1.00e+00 SAMP

1.00e+00 ML 1.00e+00 ML

04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/14/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/15/2014 04/14/2014 04/15/2014 04/14/2014 04/15/2014

0018017A 0018017A 0018017A 0018017A 0018017A 0018017A 0018017A 0018017A 0018018B 0018018B 0018018B 0018018B 0018018B 0018018B 0018018B 0018017A 0018018B 0018017A 0018018B

Samples marked with an asterisk (*) are not in SDG #1400013 but were analyzed with it for QC purposes

Report: 1400013-RA228 Original 25